Sebaihia M

References (19)

Title : Genome evolution and plasticity of Serratia marcescens, an important multidrug-resistant nosocomial pathogen - Iguchi_2014_Genome.Biol.Evol_6_2096
Author(s) : Iguchi A , Nagaya Y , Pradel E , Ooka T , Ogura Y , Katsura K , Kurokawa K , Oshima K , Hattori M , Parkhill J , Sebaihia M , Coulthurst SJ , Gotoh N , Thomson NR , Ewbank JJ , Hayashi T
Ref : Genome Biol Evol , 6 :2096 , 2014
Abstract : Serratia marcescens is an important nosocomial pathogen that can cause an array of infections, most notably of the urinary tract and bloodstream. Naturally, it is found in many environmental niches, and is capable of infecting plants and animals. The emergence and spread of multidrug-resistant strains producing extended-spectrum or metallo beta-lactamases now pose a threat to public health worldwide. Here we report the complete genome sequences of two carefully selected S. marcescens strains, a multidrug-resistant clinical isolate (strain SM39) and an insect isolate (strain Db11). Our comparative analyses reveal the core genome of S. marcescens and define the potential metabolic capacity, virulence, and multidrug resistance of this species. We show a remarkable intraspecies genetic diversity, both at the sequence level and with regards genome flexibility, which may reflect the diversity of niches inhabited by members of this species. A broader analysis with other Serratia species identifies a set of approximately 3,000 genes that characterize the genus. Within this apparent genetic diversity, we identified many genes implicated in the high virulence potential and antibiotic resistance of SM39, including the metallo beta-lactamase and multiple other drug resistance determinants carried on plasmid pSMC1. We further show that pSMC1 is most closely related to plasmids circulating in Pseudomonas species. Our data will provide a valuable basis for future studies on S. marcescens and new insights into the genetic mechanisms that underlie the emergence of pathogens highly resistant to multiple antimicrobial agents.
ESTHER : Iguchi_2014_Genome.Biol.Evol_6_2096
PubMedSearch : Iguchi_2014_Genome.Biol.Evol_6_2096
PubMedID: 25070509
Gene_locus related to this paper: serma-a0a031rry9 , serma-a0a0a5sc46

Title : Comparative genomics of the classical Bordetella subspecies: the evolution and exchange of virulence-associated diversity amongst closely related pathogens - Park_2012_BMC.Genomics_13_545
Author(s) : Park J , Zhang Y , Buboltz AM , Zhang X , Schuster SC , Ahuja U , Liu M , Miller JF , Sebaihia M , Bentley SD , Parkhill J , Harvill ET
Ref : BMC Genomics , 13 :545 , 2012
Abstract : BACKGROUND: The classical Bordetella subspecies are phylogenetically closely related, yet differ in some of the most interesting and important characteristics of pathogens, such as host range, virulence and persistence. The compelling picture from previous comparisons of the three sequenced genomes was of genome degradation, with substantial loss of genome content (up to 24%) associated with adaptation to humans.
RESULTS: For a more comprehensive picture of lineage evolution, we employed comparative genomic and phylogenomic analyses using seven additional diverse, newly sequenced Bordetella isolates. Genome-wide single nucleotide polymorphism (SNP) analysis supports a reevaluation of the phylogenetic relationships between the classical Bordetella subspecies, and suggests a closer link between ovine and human B. parapertussis lineages than has been previously proposed. Comparative analyses of genome content revealed that only 50% of the pan-genome is conserved in all strains, reflecting substantial diversity of genome content in these closely related pathogens that may relate to their different host ranges, virulence and persistence characteristics. Strikingly, these analyses suggest possible horizontal gene transfer (HGT) events in multiple loci encoding virulence factors, including O-antigen and pertussis toxin (Ptx). Segments of the pertussis toxin locus (ptx) and its secretion system locus (ptl) appear to have been acquired by the classical Bordetella subspecies and are divergent in different lineages, suggesting functional divergence in the classical Bordetellae.
CONCLUSIONS: Together, these observations, especially in key virulence factors, reveal that multiple mechanisms, such as point mutations, gain or loss of genes, as well as HGTs, contribute to the substantial phenotypic diversity of these versatile subspecies in various hosts.
ESTHER : Park_2012_BMC.Genomics_13_545
PubMedSearch : Park_2012_BMC.Genomics_13_545
PubMedID: 23051057
Gene_locus related to this paper: borbr-BB0273

Title : Complete genome sequence of the plant pathogen Erwinia amylovora strain ATCC 49946 - Sebaihia_2010_J.Bacteriol_192_2020
Author(s) : Sebaihia M , Bocsanczy AM , Biehl BS , Quail MA , Perna NT , Glasner JD , DeClerck GA , Cartinhour S , Schneider DJ , Bentley SD , Parkhill J , Beer SV
Ref : Journal of Bacteriology , 192 :2020 , 2010
Abstract : Erwinia amylovora causes the economically important disease fire blight that affects rosaceous plants, especially pear and apple. Here we report the complete genome sequence and annotation of strain ATCC 49946. The analysis of the sequence and its comparison with sequenced genomes of closely related enterobacteria revealed signs of pathoadaptation to rosaceous hosts.
ESTHER : Sebaihia_2010_J.Bacteriol_192_2020
PubMedSearch : Sebaihia_2010_J.Bacteriol_192_2020
PubMedID: 20118253
Gene_locus related to this paper: erwac-d4hwt0 , erwac-d4hxs4 , erwac-d4i2q5 , erwac-d4i3s4 , erwac-d4i259 , erwae-d4idw0 , erwpe-d0fwy1 , erwse-e3dex4

Title : Complete genome sequence and comparative metabolic profiling of the prototypical enteroaggregative Escherichia coli strain 042 - Chaudhuri_2010_PLoS.One_5_e8801
Author(s) : Chaudhuri RR , Sebaihia M , Hobman JL , Webber MA , Leyton DL , Goldberg MD , Cunningham AF , Scott-Tucker A , Ferguson PR , Thomas CM , Frankel G , Tang CM , Dudley EG , Roberts IS , Rasko DA , Pallen MJ , Parkhill J , Nataro JP , Thomson NR , Henderson IR
Ref : PLoS ONE , 5 :e8801 , 2010
Abstract : BACKGROUND: Escherichia coli can experience a multifaceted life, in some cases acting as a commensal while in other cases causing intestinal and/or extraintestinal disease. Several studies suggest enteroaggregative E. coli are the predominant cause of E. coli-mediated diarrhea in the developed world and are second only to Campylobacter sp. as a cause of bacterial-mediated diarrhea. Furthermore, enteroaggregative E. coli are a predominant cause of persistent diarrhea in the developing world where infection has been associated with malnourishment and growth retardation.
METHODS: In this study we determined the complete genomic sequence of E. coli 042, the prototypical member of the enteroaggregative E. coli, which has been shown to cause disease in volunteer studies. We performed genomic and phylogenetic comparisons with other E. coli strains revealing previously uncharacterised virulence factors including a variety of secreted proteins and a capsular polysaccharide biosynthetic locus. In addition, by using Biolog Phenotype Microarrays we have provided a full metabolic profiling of E. coli 042 and the non-pathogenic lab strain E. coli K-12. We have highlighted the genetic basis for many of the metabolic differences between E. coli 042 and E. coli K-12. CONCLUSION: This study provides a genetic context for the vast amount of experimental and epidemiological data published thus far and provides a template for future diagnostic and intervention strategies.
ESTHER : Chaudhuri_2010_PLoS.One_5_e8801
PubMedSearch : Chaudhuri_2010_PLoS.One_5_e8801
PubMedID: 20098708
Gene_locus related to this paper: ecoli-Aes , ecoli-rutD , ecoli-bioh , ecoli-C0410 , ecoli-C2429 , ecoli-dlhh , ecoli-entf , ecoli-fes , ecoli-MCMK , ecoli-mhpc , ecoli-pldb , ecoli-ptrb , ecoli-yafa , ecoli-yaim , ecoli-ybff , ecoli-ycfp , ecoli-ycjy , ecoli-yeiG , ecoli-YFBB , ecoli-yhet , ecoli-yjfp , ecoli-YNBC , ecoli-ypfh , ecoli-yqia , ecoli-Z0347 , ecoli-YfhR , yerpe-YBTT

Title : The genome of Burkholderia cenocepacia J2315, an epidemic pathogen of cystic fibrosis patients - Holden_2009_J.Bacteriol_191_261
Author(s) : Holden MT , Seth-Smith HM , Crossman LC , Sebaihia M , Bentley SD , Cerdeno-Tarraga AM , Thomson NR , Bason N , Quail MA , Sharp S , Cherevach I , Churcher C , Goodhead I , Hauser H , Holroyd N , Mungall K , Scott P , Walker D , White B , Rose H , Iversen P , Mil-Homens D , Rocha EP , Fialho AM , Baldwin A , Dowson C , Barrell BG , Govan JR , Vandamme P , Hart CA , Mahenthiralingam E , Parkhill J
Ref : Journal of Bacteriology , 191 :261 , 2009
Abstract : Bacterial infections of the lungs of cystic fibrosis (CF) patients cause major complications in the treatment of this common genetic disease. Burkholderia cenocepacia infection is particularly problematic since this organism has high levels of antibiotic resistance, making it difficult to eradicate; the resulting chronic infections are associated with severe declines in lung function and increased mortality rates. B. cenocepacia strain J2315 was isolated from a CF patient and is a member of the epidemic ET12 lineage that originated in Canada or the United Kingdom and spread to Europe. The 8.06-Mb genome of this highly transmissible pathogen comprises three circular chromosomes and a plasmid and encodes a broad array of functions typical of this metabolically versatile genus, as well as numerous virulence and drug resistance functions. Although B. cenocepacia strains can be isolated from soil and can be pathogenic to both plants and man, J2315 is representative of a lineage of B. cenocepacia rarely isolated from the environment and which spreads between CF patients. Comparative analysis revealed that ca. 21% of the genome is unique in comparison to other strains of B. cenocepacia, highlighting the genomic plasticity of this species. Pseudogenes in virulence determinants suggest that the pathogenic response of J2315 may have been recently selected to promote persistence in the CF lung. The J2315 genome contains evidence that its unique and highly adapted genetic content has played a significant role in its success as an epidemic CF pathogen.
ESTHER : Holden_2009_J.Bacteriol_191_261
PubMedSearch : Holden_2009_J.Bacteriol_191_261
PubMedID: 18931103
Gene_locus related to this paper: burcj-b4e794 , 9burk-a0u8m3 , burcj-b4ek59 , burcj-b4ehl7 , burca-q1bk56 , burce-a0a088tsj6 , burcj-b4ecv6

Title : Comparative genome and phenotypic analysis of Clostridium difficile 027 strains provides insight into the evolution of a hypervirulent bacterium - Stabler_2009_Genome.Biol_10_R102
Author(s) : Stabler RA , He M , Dawson L , Martin M , Valiente E , Corton C , Lawley TD , Sebaihia M , Quail MA , Rose G , Gerding DN , Gibert M , Popoff MR , Parkhill J , Dougan G , Wren BW
Ref : Genome Biol , 10 :R102 , 2009
Abstract : BACKGROUND The continued rise of Clostridium difficile infections worldwide has been accompanied by the rapid emergence of a highly virulent clone designated PCR-ribotype 027. To understand more about the evolution of this virulent clone, we made a three-way genomic and phenotypic comparison of an 'historic' non-epidemic 027 C. difficile (CD196), a recent epidemic and hypervirulent 027 (R20291) and a previously sequenced PCR-ribotype 012 strain (630). RESULTS: Although the genomes are highly conserved, the 027 genomes have 234 additional genes compared to 630, which may contribute to the distinct phenotypic differences we observe between these strains relating to motility, antibiotic resistance and toxicity. The epidemic 027 strain has five unique genetic regions, absent from both the non-epidemic 027 and strain 630, which include a novel phage island, a two component regulatory system and transcriptional regulators.
CONCLUSIONS: A comparison of a series of 027 isolates showed that some of these genes appeared to have been gained by 027 strains over the past two decades. This study provides genetic markers for the identification of 027 strains and offers a unique opportunity to explain the recent emergence of a hypervirulent bacterium.
ESTHER : Stabler_2009_Genome.Biol_10_R102
PubMedSearch : Stabler_2009_Genome.Biol_10_R102
PubMedID: 19781061
Gene_locus related to this paper: pepdi-t4eki5 , clod6-q183v0 , clodr-c9ynf2 , pepd6-pip

Title : The complete genome, comparative and functional analysis of Stenotrophomonas maltophilia reveals an organism heavily shielded by drug resistance determinants - Crossman_2008_Genome.Biol_9_R74
Author(s) : Crossman LC , Gould VC , Dow JM , Vernikos GS , Okazaki A , Sebaihia M , Saunders D , Arrowsmith C , Carver T , Peters N , Adlem E , Kerhornou A , Lord A , Murphy L , Seeger K , Squares R , Rutter S , Quail MA , Rajandream MA , Harris D , Churcher C , Bentley SD , Parkhill J , Thomson NR , Avison MB
Ref : Genome Biol , 9 :R74 , 2008
Abstract : BACKGROUND: Stenotrophomonas maltophilia is a nosocomial opportunistic pathogen of the Xanthomonadaceae. The organism has been isolated from both clinical and soil environments in addition to the sputum of cystic fibrosis patients and the immunocompromised. Whilst relatively distant phylogenetically, the closest sequenced relatives of S. maltophilia are the plant pathogenic xanthomonads. RESULTS: The genome of the bacteremia-associated isolate S. maltophilia K279a is 4,851,126 bp and of high G+C content. The sequence reveals an organism with a remarkable capacity for drug and heavy metal resistance. In addition to a number of genes conferring resistance to antimicrobial drugs of different classes via alternative mechanisms, nine resistance-nodulation-division (RND)-type putative antimicrobial efflux systems are present. Functional genomic analysis confirms a role in drug resistance for several of the novel RND efflux pumps. S. maltophilia possesses potentially mobile regions of DNA and encodes a number of pili and fimbriae likely to be involved in adhesion and biofilm formation that may also contribute to increased antimicrobial drug resistance. CONCLUSION: The panoply of antimicrobial drug resistance genes and mobile genetic elements found suggests that the organism can act as a reservoir of antimicrobial drug resistance determinants in a clinical environment, which is an issue of considerable concern.
ESTHER : Crossman_2008_Genome.Biol_9_R74
PubMedSearch : Crossman_2008_Genome.Biol_9_R74
PubMedID: 18419807
Gene_locus related to this paper: strm5-b4sjf3 , strm5-b4sly1 , strm5-b4smq6 , strm5-b4st20 , strm5-bioh , strmk-b2fhb1 , strmk-b2fju9 , strmk-b2fkx8 , strmk-b2fl50 , strmk-b2fl54 , strmk-b2flj0 , strmk-b2fnc5 , strmk-b2fre3 , strmk-b2frm1 , strmk-b2frs0 , strmk-b2fsp0 , strmk-b2ftw9 , strmk-b2fuf3 , strmk-metx , xanma-P95782 , strmk-b2fmj5 , strmk-b2fpy9 , strmk-b2ftk7 , strmk-b2frv5

Title : Genome evolution of Wolbachia strain wPip from the Culex pipiens group - Klasson_2008_Mol.Biol.Evol_25_1877
Author(s) : Klasson L , Walker T , Sebaihia M , Sanders MJ , Quail MA , Lord A , Sanders S , Earl J , O'Neill SL , Thomson N , Sinkins SP , Parkhill J
Ref : Molecular Biology Evolution , 25 :1877 , 2008
Abstract : The obligate intracellular bacterium Wolbachia pipientis strain wPip induces cytoplasmic incompatibility (CI), patterns of crossing sterility, in the Culex pipiens group of mosquitoes. The complete sequence is presented of the 1.48-Mbp genome of wPip which encodes 1386 coding sequences (CDSs), representing the first genome sequence of a B-supergroup Wolbachia. Comparisons were made with the smaller genomes of Wolbachia strains wMel of Drosophila melanogaster, an A-supergroup Wolbachia that is also a CI inducer, and wBm, a mutualist of Brugia malayi nematodes that belongs to the D-supergroup of Wolbachia. Despite extensive gene order rearrangement, a core set of Wolbachia genes shared between the 3 genomes can be identified and contrasts with a flexible gene pool where rapid evolution has taken place. There are much more extensive prophage and ankyrin repeat encoding (ANK) gene components of the wPip genome compared with wMel and wBm, and both are likely to be of considerable importance in wPip biology. Five WO-B-like prophage regions are present and contain some genes that are identical or highly similar in multiple prophage copies, whereas other genes are unique, and it is likely that extensive recombination, duplication, and insertion have occurred between copies. A much larger number of genes encode ankyrin repeat (ANK) proteins in wPip, with 60 present compared with 23 in wMel, many of which are within or close to the prophage regions. It is likely that this pattern is partly a result of expansions in the wPip lineage, due for example to gene duplication, but their presence is in some cases more ancient. The wPip genome underlines the considerable evolutionary flexibility of Wolbachia, providing clear evidence for the rapid evolution of ANK-encoding genes and of prophage regions. This host-Wolbachia system, with its complex patterns of sterility induced between populations, now provides an excellent model for unraveling the molecular systems underlying host reproductive manipulation.
ESTHER : Klasson_2008_Mol.Biol.Evol_25_1877
PubMedSearch : Klasson_2008_Mol.Biol.Evol_25_1877
PubMedID: 18550617

Title : The pangenome structure of Escherichia coli: comparative genomic analysis of E. coli commensal and pathogenic isolates - Rasko_2008_J.Bacteriol_190_6881
Author(s) : Rasko DA , Rosovitz MJ , Myers GS , Mongodin EF , Fricke WF , Gajer P , Crabtree J , Sebaihia M , Thomson NR , Chaudhuri R , Henderson IR , Sperandio V , Ravel J
Ref : Journal of Bacteriology , 190 :6881 , 2008
Abstract : Whole-genome sequencing has been skewed toward bacterial pathogens as a consequence of the prioritization of medical and veterinary diseases. However, it is becoming clear that in order to accurately measure genetic variation within and between pathogenic groups, multiple isolates, as well as commensal species, must be sequenced. This study examined the pangenomic content of Escherichia coli. Six distinct E. coli pathovars can be distinguished using molecular or phenotypic markers, but only two of the six pathovars have been subjected to any genome sequencing previously. Thus, this report provides a seminal description of the genomic contents and unique features of three unsequenced pathovars, enterotoxigenic E. coli, enteropathogenic E. coli, and enteroaggregative E. coli. We also determined the first genome sequence of a human commensal E. coli isolate, E. coli HS, which will undoubtedly provide a new baseline from which workers can examine the evolution of pathogenic E. coli. Comparison of 17 E. coli genomes, 8 of which are new, resulted in identification of approximately 2,200 genes conserved in all isolates. We were also able to identify genes that were isolate and pathovar specific. Fewer pathovar-specific genes were identified than anticipated, suggesting that each isolate may have independently developed virulence capabilities. Pangenome calculations indicate that E. coli genomic diversity represents an open pangenome model containing a reservoir of more than 13,000 genes, many of which may be uncharacterized but important virulence factors. This comparative study of the species E. coli, while descriptive, should provide the basis for future functional work on this important group of pathogens.
ESTHER : Rasko_2008_J.Bacteriol_190_6881
PubMedSearch : Rasko_2008_J.Bacteriol_190_6881
PubMedID: 18676672
Gene_locus related to this paper: ecoli-Aes , ecoli-rutD , ecoli-bioh , ecoli-C4836 , ecoli-dlhh , ecoli-entf , ecoli-fes , ecoli-mhpc , ecoli-pldb , ecoli-ptrb , ecoli-yafa , ecoli-yaim , ecoli-ybff , ecoli-ycfp , ecoli-ycjy , ecoli-yeiG , ecoli-YFBB , ecoli-yghX , ecoli-yhet , ecoli-yiel , ecoli-yjfp , ecoli-YNBC , ecoli-ypfh , ecoli-ypt1 , ecoli-yqia , ecoli-Z2445 , ecoli-YfhR

Title : Complete genome sequence of uropathogenic Proteus mirabilis, a master of both adherence and motility - Pearson_2008_J.Bacteriol_190_4027
Author(s) : Pearson MM , Sebaihia M , Churcher C , Quail MA , Seshasayee AS , Luscombe NM , Abdellah Z , Arrosmith C , Atkin B , Chillingworth T , Hauser H , Jagels K , Moule S , Mungall K , Norbertczak H , Rabbinowitsch E , Walker D , Whithead S , Thomson NR , Rather PN , Parkhill J , Mobley HL
Ref : Journal of Bacteriology , 190 :4027 , 2008
Abstract : The gram-negative enteric bacterium Proteus mirabilis is a frequent cause of urinary tract infections in individuals with long-term indwelling catheters or with complicated urinary tracts (e.g., due to spinal cord injury or anatomic abnormality). P. mirabilis bacteriuria may lead to acute pyelonephritis, fever, and bacteremia. Most notoriously, this pathogen uses urease to catalyze the formation of kidney and bladder stones or to encrust or obstruct indwelling urinary catheters. Here we report the complete genome sequence of P. mirabilis HI4320, a representative strain cultured in our laboratory from the urine of a nursing home patient with a long-term (> or =30 days) indwelling urinary catheter. The genome is 4.063 Mb long and has a G+C content of 38.88%. There is a single plasmid consisting of 36,289 nucleotides. Annotation of the genome identified 3,685 coding sequences and seven rRNA loci. Analysis of the sequence confirmed the presence of previously identified virulence determinants, as well as a contiguous 54-kb flagellar regulon and 17 types of fimbriae. Genes encoding a potential type III secretion system were identified on a low-G+C-content genomic island containing 24 intact genes that appear to encode all components necessary to assemble a type III secretion system needle complex. In addition, the P. mirabilis HI4320 genome possesses four tandem copies of the zapE metalloprotease gene, genes encoding six putative autotransporters, an extension of the atf fimbrial operon to six genes, including an mrpJ homolog, and genes encoding at least five iron uptake mechanisms, two potential type IV secretion systems, and 16 two-component regulators.
ESTHER : Pearson_2008_J.Bacteriol_190_4027
PubMedSearch : Pearson_2008_J.Bacteriol_190_4027
PubMedID: 18375554
Gene_locus related to this paper: promh-b4euu8 , promh-b4ev30 , promh-b4evj5 , promh-b4f0a1 , promh-bioh , promi-c2lhp6 , promi-c2lla8 , promi-NRPS , promi-NRPT , promi-k1gzm2 , promh-b4eve8

Title : The missing link: Bordetella petrii is endowed with both the metabolic versatility of environmental bacteria and virulence traits of pathogenic Bordetellae - Gross_2008_BMC.Genomics_9_449
Author(s) : Gross R , Guzman CA , Sebaihia M , dos Santos VA , Pieper DH , Koebnik R , Lechner M , Bartels D , Buhrmester J , Choudhuri JV , Ebensen T , Gaigalat L , Herrmann S , Khachane AN , Larisch C , Link S , Linke B , Meyer F , Mormann S , Nakunst D , Ruckert C , Schneiker-Bekel S , Schulze K , Vorholter FJ , Yevsa T , Engle JT , Goldman WE , Puhler A , Gobel UB , Goesmann A , Blocker H , Kaiser O , Martinez-Arias R
Ref : BMC Genomics , 9 :449 , 2008
Abstract : BACKGROUND: Bordetella petrii is the only environmental species hitherto found among the otherwise host-restricted and pathogenic members of the genus Bordetella. Phylogenetically, it connects the pathogenic Bordetellae and environmental bacteria of the genera Achromobacter and Alcaligenes, which are opportunistic pathogens. B. petrii strains have been isolated from very different environmental niches, including river sediment, polluted soil, marine sponges and a grass root. Recently, clinical isolates associated with bone degenerative disease or cystic fibrosis have also been described. RESULTS: In this manuscript we present the results of the analysis of the completely annotated genome sequence of the B. petrii strain DSMZ12804. B. petrii has a mosaic genome of 5,287,950 bp harboring numerous mobile genetic elements, including seven large genomic islands. Four of them are highly related to the clc element of Pseudomonas knackmussii B13, which encodes genes involved in the degradation of aromatics. Though being an environmental isolate, the sequenced B. petrii strain also encodes proteins related to virulence factors of the pathogenic Bordetellae, including the filamentous hemagglutinin, which is a major colonization factor of B. pertussis, and the master virulence regulator BvgAS. However, it lacks all known toxins of the pathogenic Bordetellae. CONCLUSION: The genomic analysis suggests that B. petrii represents an evolutionary link between free-living environmental bacteria and the host-restricted obligate pathogenic Bordetellae. Its remarkable metabolic versatility may enable B. petrii to thrive in very different ecological niches.
ESTHER : Gross_2008_BMC.Genomics_9_449
PubMedSearch : Gross_2008_BMC.Genomics_9_449
PubMedID: 18826580
Gene_locus related to this paper: alceu-CBNC , borpd-a9hwh7 , borpd-a9hxw5 , borpd-a9hyr5 , borpd-a9hzm8 , borpd-a9i1l8 , borpd-a9i4f4 , borpd-a9i8i7 , borpd-a9icj9 , borpd-a9iec4 , borpd-a9iep7 , borpd-a9ih03 , borpd-a9iu09 , borpd-metx , bursp-tecF , borpd-a9i1v7

Title : Genome sequence of a proteolytic (Group I) Clostridium botulinum strain Hall A and comparative analysis of the clostridial genomes - Sebaihia_2007_Genome.Res_17_1082
Author(s) : Sebaihia M , Peck MW , Minton NP , Thomson NR , Holden MT , Mitchell WJ , Carter AT , Bentley SD , Mason DR , Crossman L , Paul CJ , Ivens A , Wells-Bennik MH , Davis IJ , Cerdeno-Tarraga AM , Churcher C , Quail MA , Chillingworth T , Feltwell T , Fraser A , Goodhead I , Hance Z , Jagels K , Larke N , Maddison M , Moule S , Mungall K , Norbertczak H , Rabbinowitsch E , Sanders M , Simmonds M , White B , Whithead S , Parkhill J
Ref : Genome Res , 17 :1082 , 2007
Abstract : Clostridium botulinum is a heterogeneous Gram-positive species that comprises four genetically and physiologically distinct groups of bacteria that share the ability to produce botulinum neurotoxin, the most poisonous toxin known to man, and the causative agent of botulism, a severe disease of humans and animals. We report here the complete genome sequence of a representative of Group I (proteolytic) C. botulinum (strain Hall A, ATCC 3502). The genome consists of a chromosome (3,886,916 bp) and a plasmid (16,344 bp), which carry 3650 and 19 predicted genes, respectively. Consistent with the proteolytic phenotype of this strain, the genome harbors a large number of genes encoding secreted proteases and enzymes involved in uptake and metabolism of amino acids. The genome also reveals a hitherto unknown ability of C. botulinum to degrade chitin. There is a significant lack of recently acquired DNA, indicating a stable genomic content, in strong contrast to the fluid genome of Clostridium difficile, which can form longer-term relationships with its host. Overall, the genome indicates that C. botulinum is adapted to a saprophytic lifestyle both in soil and aquatic environments. This pathogen relies on its toxin to rapidly kill a wide range of prey species, and to gain access to nutrient sources, it releases a large number of extracellular enzymes to soften and destroy rotting or decayed tissues.
ESTHER : Sebaihia_2007_Genome.Res_17_1082
PubMedSearch : Sebaihia_2007_Genome.Res_17_1082
PubMedID: 17519437
Gene_locus related to this paper: clobh-A5I3I2 , clobh-A51055 , clob1-a7fqm2 , clob1-a7fv94 , clobl-a7gbn0 , clobh-pip , clobh-a5i3m0

Title : The multidrug-resistant human pathogen Clostridium difficile has a highly mobile, mosaic genome - Sebaihia_2006_Nat.Genet_38_779
Author(s) : Sebaihia M , Wren BW , Mullany P , Fairweather NF , Minton N , Stabler R , Thomson NR , Roberts AP , Cerdeno-Tarraga AM , Wang H , Holden MT , Wright A , Churcher C , Quail MA , Baker S , Bason N , Brooks K , Chillingworth T , Cronin A , Davis P , Dowd L , Fraser A , Feltwell T , Hance Z , Holroyd S , Jagels K , Moule S , Mungall K , Price C , Rabbinowitsch E , Sharp S , Simmonds M , Stevens K , Unwin L , Whithead S , Dupuy B , Dougan G , Barrell B , Parkhill J
Ref : Nat Genet , 38 :779 , 2006
Abstract : We determined the complete genome sequence of Clostridium difficile strain 630, a virulent and multidrug-resistant strain. Our analysis indicates that a large proportion (11%) of the genome consists of mobile genetic elements, mainly in the form of conjugative transposons. These mobile elements are putatively responsible for the acquisition by C. difficile of an extensive array of genes involved in antimicrobial resistance, virulence, host interaction and the production of surface structures. The metabolic capabilities encoded in the genome show multiple adaptations for survival and growth within the gut environment. The extreme genome variability was confirmed by whole-genome microarray analysis; it may reflect the organism's niche in the gut and should provide information on the evolution of virulence in this organism.
ESTHER : Sebaihia_2006_Nat.Genet_38_779
PubMedSearch : Sebaihia_2006_Nat.Genet_38_779
PubMedID: 16804543
Gene_locus related to this paper: pepdi-t4eki5 , clod6-q18a60 , clod6-q183v0 , clodi-HYDD , clodr-c9ynf2 , pepd6-pip , pepdi-g6brr4

Title : Comparison of the genome sequence of the poultry pathogen Bordetella avium with those of B. bronchiseptica, B. pertussis, and B. parapertussis reveals extensive diversity in surface structures associated with host interaction - Sebaihia_2006_J.Bacteriol_188_6002
Author(s) : Sebaihia M , Preston A , Maskell DJ , Kuzmiak H , Connell TD , King ND , Orndorff PE , Miyamoto DM , Thomson NR , Harris D , Goble A , Lord A , Murphy L , Quail MA , Rutter S , Squares R , Squares S , Woodward J , Parkhill J , Temple LM
Ref : Journal of Bacteriology , 188 :6002 , 2006
Abstract : Bordetella avium is a pathogen of poultry and is phylogenetically distinct from Bordetella bronchiseptica, Bordetella pertussis, and Bordetella parapertussis, which are other species in the Bordetella genus that infect mammals. In order to understand the evolutionary relatedness of Bordetella species and further the understanding of pathogenesis, we obtained the complete genome sequence of B. avium strain 197N, a pathogenic strain that has been extensively studied. With 3,732,255 base pairs of DNA and 3,417 predicted coding sequences, it has the smallest genome and gene complement of the sequenced bordetellae. In this study, the presence or absence of previously reported virulence factors from B. avium was confirmed, and the genetic bases for growth characteristics were elucidated. Over 1,100 genes present in B. avium but not in B. bronchiseptica were identified, and most were predicted to encode surface or secreted proteins that are likely to define an organism adapted to the avian rather than the mammalian respiratory tracts. These include genes coding for the synthesis of a polysaccharide capsule, hemagglutinins, a type I secretion system adjacent to two very large genes for secreted proteins, and unique genes for both lipopolysaccharide and fimbrial biogenesis. Three apparently complete prophages are also present. The BvgAS virulence regulatory system appears to have polymorphisms at a poly(C) tract that is involved in phase variation in other bordetellae. A number of putative iron-regulated outer membrane proteins were predicted from the sequence, and this regulation was confirmed experimentally for five of these.
ESTHER : Sebaihia_2006_J.Bacteriol_188_6002
PubMedSearch : Sebaihia_2006_J.Bacteriol_188_6002
PubMedID: 16885469
Gene_locus related to this paper: bora1-q2kti1 , bora1-q2ktw2 , bora1-q2ku63 , bora1-q2kun8 , bora1-q2kuu7 , bora1-q2kuz2 , bora1-q2kv84 , bora1-q2kvg3 , bora1-q2kw07 , bora1-q2kw58 , bora1-q2kwy4 , bora1-q2kxl0 , bora1-q2kxn8 , bora1-q2kxw5 , bora1-q2kxz8 , bora1-q2kyw6 , bora1-q2kzr8 , bora1-q2kzt4 , bora1-q2kzx4 , bora1-q2l0h1 , bora1-q2l0h9 , bora1-q2l0p4 , bora1-q2l1n9 , bora1-q2l1v4 , bora1-q2l1z1 , bora1-q2l122 , bora1-q2l209

Title : Genome sequence of the enterobacterial phytopathogen Erwinia carotovora subsp. atroseptica and characterization of virulence factors - Bell_2004_Proc.Natl.Acad.Sci.U.S.A_101_11105
Author(s) : Bell KS , Sebaihia M , Pritchard L , Holden MT , Hyman LJ , Holeva MC , Thomson NR , Bentley SD , Churcher LJ , Mungall K , Atkin R , Bason N , Brooks K , Chillingworth T , Clark K , Doggett J , Fraser A , Hance Z , Hauser H , Jagels K , Moule S , Norbertczak H , Ormond D , Price C , Quail MA , Sanders M , Walker D , Whitehead S , Salmond GP , Birch PR , Parkhill J , Toth IK
Ref : Proc Natl Acad Sci U S A , 101 :11105 , 2004
Abstract : The bacterial family Enterobacteriaceae is notable for its well studied human pathogens, including Salmonella, Yersinia, Shigella, and Escherichia spp. However, it also contains several plant pathogens. We report the genome sequence of a plant pathogenic enterobacterium, Erwinia carotovora subsp. atroseptica (Eca) strain SCRI1043, the causative agent of soft rot and blackleg potato diseases. Approximately 33% of Eca genes are not shared with sequenced enterobacterial human pathogens, including some predicted to facilitate unexpected metabolic traits, such as nitrogen fixation and opine catabolism. This proportion of genes also contains an overrepresentation of pathogenicity determinants, including possible horizontally acquired gene clusters for putative type IV secretion and polyketide phytotoxin synthesis. To investigate whether these gene clusters play a role in the disease process, an arrayed set of insertional mutants was generated, and mutations were identified. Plant bioassays showed that these mutants were significantly reduced in virulence, demonstrating both the presence of novel pathogenicity determinants in Eca, and the impact of functional genomics in expanding our understanding of phytopathogenicity in the Enterobacteriaceae.
ESTHER : Bell_2004_Proc.Natl.Acad.Sci.U.S.A_101_11105
PubMedSearch : Bell_2004_Proc.Natl.Acad.Sci.U.S.A_101_11105
PubMedID: 15263089
Gene_locus related to this paper: erwct-q6czi2 , erwct-q6czl9 , erwct-q6czu1 , erwct-q6d0l3 , erwct-q6d1e3 , erwct-q6d1l9 , erwct-q6d2k4 , erwct-q6d2x2 , erwct-q6d3m9 , erwct-q6d4b7 , erwct-q6d6t8 , erwct-q6d7j1 , erwct-q6d7p5 , erwct-q6d7w3 , erwct-q6d8k2 , erwct-q6d8q7 , erwct-q6d9l2 , erwct-q6d041 , erwct-q6d134 , erwct-q6d207 , erwct-q6d508 , erwct-q6d615 , erwct-q6d673 , erwct-q6d739.1 , erwct-q6d739.2 , erwct-q6d884 , erwct-q6da42 , erwct-q6da66 , erwct-q6dac1 , erwct-q6dar9 , erwct-Y3465

Title : Genomic plasticity of the causative agent of melioidosis, Burkholderia pseudomallei - Holden_2004_Proc.Natl.Acad.Sci.U.S.A_101_14240
Author(s) : Holden MT , Titball RW , Peacock SJ , Cerdeno-Tarraga AM , Atkins T , Crossman LC , Pitt T , Churcher C , Mungall K , Bentley SD , Sebaihia M , Thomson NR , Bason N , Beacham IR , Brooks K , Brown KA , Brown NF , Challis GL , Cherevach I , Chillingworth T , Cronin A , Crossett B , Davis P , DeShazer D , Feltwell T , Fraser A , Hance Z , Hauser H , Holroyd S , Jagels K , Keith KE , Maddison M , Moule S , Price C , Quail MA , Rabbinowitsch E , Rutherford K , Sanders M , Simmonds M , Songsivilai S , Stevens K , Tumapa S , Vesaratchavest M , Whitehead S , Yeats C , Barrell BG , Oyston PC , Parkhill J
Ref : Proc Natl Acad Sci U S A , 101 :14240 , 2004
Abstract : Burkholderia pseudomallei is a recognized biothreat agent and the causative agent of melioidosis. This Gram-negative bacterium exists as a soil saprophyte in melioidosis-endemic areas of the world and accounts for 20% of community-acquired septicaemias in northeastern Thailand where half of those affected die. Here we report the complete genome of B. pseudomallei, which is composed of two chromosomes of 4.07 megabase pairs and 3.17 megabase pairs, showing significant functional partitioning of genes between them. The large chromosome encodes many of the core functions associated with central metabolism and cell growth, whereas the small chromosome carries more accessory functions associated with adaptation and survival in different niches. Genomic comparisons with closely and more distantly related bacteria revealed a greater level of gene order conservation and a greater number of orthologous genes on the large chromosome, suggesting that the two replicons have distinct evolutionary origins. A striking feature of the genome was the presence of 16 genomic islands (GIs) that together made up 6.1% of the genome. Further analysis revealed these islands to be variably present in a collection of invasive and soil isolates but entirely absent from the clonally related organism B. mallei. We propose that variable horizontal gene acquisition by B. pseudomallei is an important feature of recent genetic evolution and that this has resulted in a genetically diverse pathogenic species.
ESTHER : Holden_2004_Proc.Natl.Acad.Sci.U.S.A_101_14240
PubMedSearch : Holden_2004_Proc.Natl.Acad.Sci.U.S.A_101_14240
PubMedID: 15377794
Gene_locus related to this paper: burma-a5j5w8 , burma-a5tj72 , burma-a5tq93 , burma-metx , burma-q62a61 , burma-q62ar2.1 , burma-q62ar2.2 , burma-q62ax8 , burma-q62b60 , burma-q62b79 , burma-q62bh9 , burma-q62bl4 , burma-q62bl7 , burma-q62c00 , burma-q62cg5 , burma-q62d41 , burma-q62d56 , burma-q62d83 , burma-q62dg2 , burma-q62du7 , burma-q62e67 , burma-q62eb8 , burma-q62ed8 , burma-q62f28 , burma-q62fx7 , burma-q62g26 , burma-q62gx9 , burma-q62gy2 , burma-q62hq2 , burma-q62i62 , burma-q62ib8 , burma-q62ie8 , burma-q62j07 , burma-q62j15 , burma-q62jn5 , burma-q62jy7 , burma-q62kb7 , burma-q62kg0 , burma-q62kh9 , burma-q62lp7 , burma-q62m40 , burma-q62mc3 , burma-q62mf4 , burma-q62mq7 , burma-q629m1 , burma-q629p4 , burma-q629u0 , burp1-q3jvq2 , burps-a4lm41 , burps-q3v7s4 , burps-q63hx2 , burps-q63i95 , burps-q63im5 , burps-q63is4 , burps-q63ja6 , burps-q63ja9 , burps-q63jh5 , burps-q63l17 , burps-q63l41 , burps-q63l44 , burps-q63lt9 , burps-q63me1 , burps-q63mj7 , burps-q63mj8 , burps-q63mn8 , burps-q63mr2 , burps-q63n52 , burps-q63p18 , burps-q63p99 , burps-q63ug2 , burps-q63ug5 , burps-q63xf9 , burps-q63y36 , burps-q63y45 , burps-q63y52 , burps-q63y59 , burta-q2t474 , burps-hboh

Title : Comparative analysis of the genome sequences of Bordetella pertussis, Bordetella parapertussis and Bordetella bronchiseptica - Parkhill_2003_Nat.Genet_35_32
Author(s) : Parkhill J , Sebaihia M , Preston A , Murphy LD , Thomson N , Harris DE , Holden MT , Churcher CM , Bentley SD , Mungall KL , Cerdeno-Tarraga AM , Temple L , James K , Harris B , Quail MA , Achtman M , Atkin R , Baker S , Basham D , Bason N , Cherevach I , Chillingworth T , Collins M , Cronin A , Davis P , Doggett J , Feltwell T , Goble A , Hamlin N , Hauser H , Holroyd S , Jagels K , Leather S , Moule S , Norberczak H , O'Neil S , Ormond D , Price C , Rabbinowitsch E , Rutter S , Sanders M , Saunders D , Seeger K , Sharp S , Simmonds M , Skelton J , Squares R , Squares S , Stevens K , Unwin L , Whitehead S , Barrell BG , Maskell DJ
Ref : Nat Genet , 35 :32 , 2003
Abstract : Bordetella pertussis, Bordetella parapertussis and Bordetella bronchiseptica are closely related Gram-negative beta-proteobacteria that colonize the respiratory tracts of mammals. B. pertussis is a strict human pathogen of recent evolutionary origin and is the primary etiologic agent of whooping cough. B. parapertussis can also cause whooping cough, and B. bronchiseptica causes chronic respiratory infections in a wide range of animals. We sequenced the genomes of B. bronchiseptica RB50 (5,338,400 bp; 5,007 predicted genes), B. parapertussis 12822 (4,773,551 bp; 4,404 genes) and B. pertussis Tohama I (4,086,186 bp; 3,816 genes). Our analysis indicates that B. parapertussis and B. pertussis are independent derivatives of B. bronchiseptica-like ancestors. During the evolution of these two host-restricted species there was large-scale gene loss and inactivation; host adaptation seems to be a consequence of loss, not gain, of function, and differences in virulence may be related to loss of regulatory or control functions.
ESTHER : Parkhill_2003_Nat.Genet_35_32
PubMedSearch : Parkhill_2003_Nat.Genet_35_32
PubMedID: 12910271
Gene_locus related to this paper: borbr-BB0273 , borbr-BB0570 , borbr-BB0670 , borbr-BB1064 , borbr-BB1079 , borbr-BB1247 , borbr-BB1498 , borbr-BB2718 , borbr-BB4129 , borbr-BB4247 , borbr-MHPC , borbr-q7wdw1 , borbr-q7wiz8 , borbr-q7wk25 , borbr-q7wmc2 , borbr-q7wpd9 , borpa-q7w3f3 , borpa-q7w9v8 , borpe-BIOH , borpe-BP0300 , borpe-BP2114 , borpe-BP2146 , borpe-BP2511 , borpe-BP3096 , borpe-BP3623 , borpe-BP3691 , borpe-CATD2 , borpe-METX , borpe-O30449 , borpe-PHBC , borpe-q7vsl4 , borpe-q7vt07 , borpe-q7vtg0 , borpe-q7vtv2 , borpe-q7vus4 , borpe-q7vuv4 , borpe-q7vv11 , borpe-q7vv48 , borpe-q7vvf6 , borpe-q7vwu4 , borpe-q7vyn0 , borpe-q7vyq4 , borpe-q7vz26 , borpe-q7vzb4 , borpe-q7vzj6 , borpe-q7w073

Title : Genome sequence of Yersinia pestis, the causative agent of plague. - Parkhill_2001_Nature_413_523
Author(s) : Parkhill J , Wren BW , Thomson NR , Titball RW , Holden MTG , Prentice MB , Sebaihia M , James KD , Churcher C , Mungall KL , Baker S , Basham D , Bentley SD , Brooks K , Cerdeno-Tarraga AM , Chillingworth T , Cronin A , Davies RM , Davis P , Dougan G , Feltwell T , Hamlin N , Holroyd S , Jagels K , Karlyshev AV , Leather S , Moule S , Oyston PCF , Quail M , Rutherford K , Simmonds M , Skelton J , Stevens K , Whitehead S , Barrell BG
Ref : Nature , 413 :523 , 2001
Abstract : The Gram-negative bacterium Yersinia pestis is the causative agent of the systemic invasive infectious disease classically referred to as plague, and has been responsible for three human pandemics: the Justinian plague (sixth to eighth centuries), the Black Death (fourteenth to nineteenth centuries) and modern plague (nineteenth century to the present day). The recent identification of strains resistant to multiple drugs and the potential use of Y. pestis as an agent of biological warfare mean that plague still poses a threat to human health. Here we report the complete genome sequence of Y. pestis strain CO92, consisting of a 4.65-megabase (Mb) chromosome and three plasmids of 96.2 kilobases (kb), 70.3 kb and 9.6 kb. The genome is unusually rich in insertion sequences and displays anomalies in GC base-composition bias, indicating frequent intragenomic recombination. Many genes seem to have been acquired from other bacteria and viruses (including adhesins, secretion systems and insecticidal toxins). The genome contains around 150 pseudogenes, many of which are remnants of a redundant enteropathogenic lifestyle. The evidence of ongoing genome fluidity, expansion and decay suggests Y. pestis is a pathogen that has undergone large-scale genetic flux and provides a unique insight into the ways in which new and highly virulent pathogens evolve.
ESTHER : Parkhill_2001_Nature_413_523
PubMedSearch : Parkhill_2001_Nature_413_523
PubMedID: 11586360
Gene_locus related to this paper: yerpe-BIOH , yerpe-dlhh , yerpe-IRP1 , yerpe-PIP , yerpe-PLDB , yerpe-PTRB , yerpe-q8zey9 , yerpe-y1616 , yerpe-y3224 , yerpe-YBTT , yerpe-YPLA , yerpe-YPO0180 , yerpe-YPO0667 , yerpe-YPO0773 , yerpe-YPO0776 , yerpe-YPO0986 , yerpe-YPO1501 , yerpe-YPO1997 , yerpe-YPO2002 , yerpe-YPO2336 , yerpe-YPO2526 , yerpe-YPO2638 , yerpe-YPO2814 , yerpe-YPO4014

Title : Complete genome sequence of a multiple drug resistant Salmonella enterica serovar Typhi CT18 - Parkhill_2001_Nature_413_848
Author(s) : Parkhill J , Dougan G , James KD , Thomson NR , Pickard D , Wain J , Churcher C , Mungall KL , Bentley SD , Holden MT , Sebaihia M , Baker S , Basham D , Brooks K , Chillingworth T , Connerton P , Cronin A , Davis P , Davies RM , Dowd L , White N , Farrar J , Feltwell T , Hamlin N , Haque A , Hien TT , Holroyd S , Jagels K , Krogh A , Larsen TS , Leather S , Moule S , O'Gaora P , Parry C , Quail M , Rutherford K , Simmonds M , Skelton J , Stevens K , Whitehead S , Barrell BG
Ref : Nature , 413 :848 , 2001
Abstract : Salmonella enterica serovar Typhi (S. typhi) is the aetiological agent of typhoid fever, a serious invasive bacterial disease of humans with an annual global burden of approximately 16 million cases, leading to 600,000 fatalities. Many S. enterica serovars actively invade the mucosal surface of the intestine but are normally contained in healthy individuals by the local immune defence mechanisms. However, S. typhi has evolved the ability to spread to the deeper tissues of humans, including liver, spleen and bone marrow. Here we have sequenced the 4,809,037-base pair (bp) genome of a S. typhi (CT18) that is resistant to multiple drugs, revealing the presence of hundreds of insertions and deletions compared with the Escherichia coli genome, ranging in size from single genes to large islands. Notably, the genome sequence identifies over two hundred pseudogenes, several corresponding to genes that are known to contribute to virulence in Salmonella typhimurium. This genetic degradation may contribute to the human-restricted host range for S. typhi. CT18 harbours a 218,150-bp multiple-drug-resistance incH1 plasmid (pHCM1), and a 106,516-bp cryptic plasmid (pHCM2), which shows recent common ancestry with a virulence plasmid of Yersinia pestis.
ESTHER : Parkhill_2001_Nature_413_848
PubMedSearch : Parkhill_2001_Nature_413_848
PubMedID: 11677608
Gene_locus related to this paper: salen-OPDB , salti-q8z717 , salty-AES , salty-BIOH , salty-ENTF , salty-FES , salty-IROD , salty-IROE , salty-PLDB , salty-STM2547 , salty-STM4506 , salty-STY1441 , salty-STY2428 , salty-STY3846 , salty-yafa , salty-YBFF , salty-ycfp , salty-YFBB , salty-YJFP , salty-YQIA